Re: Colored photos and papers with strange coloring HP 6150 All in One Printer

I am running Windows XP and using a 3 year old HP 6150. I have never had any issues up until 3 months ago it started printing with off coloring. Most of the cartridges currently are originally HP as I have replaced most of the Office Max cartridges checking to see if that was the issue. I have run the diagnostic tests and cleaned the heads. What am I missing?